3162 matches found
Linux Distros Unpatched Vulnerability : CVE-2026-12505
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a...
Astra Linux – Vulnerability in Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: cifs: A connection leak occurs when the tlink setup fails. If the tlink setup fails and connections are lost, then the refcnt leak occurs due to the cifsd kthread not exiting. Additionally, fscache information is also leaked...
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed a UAF in cifsdemultiplexthread There is a UAF when performing xfstests on cifs: BUG: KASAN: Use-after-free in smb2isnetworknamedeleted+0x27/0x160 Reading a size 4 value at address ffff88810103fc08 by task cifsd/923...
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15, Linux 5.10
In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed a use-after-free bug in cifsdebugdataprocShow Skipped SMB sessions that are being terminated e.g., @ses-sesstatus == SESEXITING in cifsdebugdataProcShow to avoid use-after-free issues with @ses. This fix...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: cifs: A memory leak occurs when the build ntlmssp negotiate blob operation fails. There is a memory leak when mounting CIFS shares: - Unreferenced object: 0xffff888166059600 size 448 Command: “mount.cifs”, PID: 51391, Jiffies:...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fixed an out-of-bounds read in cifssanitizeprepath. When cifssanitizeprepath is called with an empty string or a string containing only delimiters e.g., /, the current logic attempts to check cursor2 - 1 before...
UBUNTU-CVE-2026-12505
A flaw was found in the cifs-utils package where the cifs.upcall helpe...
CVE-2026-12505
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...
CVE-2026-12505
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...
CVE-2026-12505 Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...
EUVD-2026-37834
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...
CVE-2026-12505 Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall
A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...
CVE-2026-12505
CVE-2026-12505 concerns the cifs-utils package. The issue: the root-owned cifs.upcall fails to securely drop root privileges before consulting user information, allowing a local, low-privilege attacker to craft a request_key payload that causes the process to enter a controlled environment with a...
kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges...
Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7585-2)
The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7585-2 advisory. It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls...
Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7585-3)
The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7585-3 advisory. It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls...
Important: Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...
Important: Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...
kernel: smb: client: validate the whole DACL before rewriting it in cifsacl
A flaw was found in the Linux kernel's Server Message Block SMB client, specifically within the cifsacl functionality. A malicious SMB server could provide a malformed Discretionary Access Control List DACL that claims to contain more Access Control Entries ACEs than are actually present. This...
RHEL 9 : kernel (RHSA-2026:22940)
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:22940 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: Make cakeenqueue...